Home / 3,228-4,454.91-1,831.02

Finding the Fourth Proportional to 3,228, 4,454.91 and 1,831.02

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Solution

The fourth proportional to 3,228, 4,454.91 and 1,831.02 is: 2,526.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,228 : 4,454.91 = 1,831.02 : x
  2. Step 2: Convert to fraction form
    3,228/4,454.91 = 1,831.02/x
  3. Step 3: Cross multiply
    3,228x = 4,454.91 × 1,831.02
  4. Step 4: Simplify right side
    3,228x = 8,157,029.31
  5. Step 5: Solve for x
    x = 8,157,029.31/3,228
  6. Step 6: Final answer
    x = 2,526.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.